Compared to the conventional shore connected breakwater,the function of isolated breakwater is more simple and clear.Isolated breakwater is set for providing wave protection for a single jetty usually,considering the overall economic benefit on the premise of satisfying its specific function,the elevation design standard for isolated breakwater can be reduced appropriately.Based on the actual project,European standard is adopted in this paper to calculate the wave overtopping and wave transmission for isolated breakwater.Then,the isolated breakwater elevation is determined according to control requirements of wave overtopping and wave transmission,and design elevation of the isolated breakwater is verified by the physical model test.